Divrey Hayamim Alef 23:5-7

Orthodox Jewish Bible

⁵ Moreover four alafim were sho’arim (gatekeepers); and four alafim praised Hashem with the kelim (instruments) which I made, said Dovid, to praise therewith.

⁶ And Dovid divided them into divisions among the Bnei Levi, namely, Gershon, Kehat, and Merari.

⁷ Of the Gershoni were La’dan, and Shimei.